Re: [PATCH v2 01/28] spi: s3c64xx: explicitly include <linux/io.h>

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On Thu, Jan 25, 2024 at 8:50 AM Tudor Ambarus <tudor.ambarus@xxxxxxxxxx> wrote:
>
> The driver uses readl() but does not include <linux/io.h>.
>
> It is good practice to directly include all headers used, it avoids
> implicit dependencies and spurious breakage if someone rearranges
> headers and causes the implicit include to vanish.
>
> Include the missing header.
>
> Fixes: 230d42d422e7 ("spi: Add s3c64xx SPI Controller driver")

Not sure the "Fixes" tag is needed here. AFAIU, this patch doesn't fix
any actual bugs, seems more like a style fix to me. In other words,
I'm not convinced it has to be necessarily backported to stable
kernels. The same goes for another similar patch from this series.

> Signed-off-by: Tudor Ambarus <tudor.ambarus@xxxxxxxxxx>
> ---
>  drivers/spi/spi-s3c64xx.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
> index 7f7eb8f742e4..c1cbc4780a3b 100644
> --- a/drivers/spi/spi-s3c64xx.c
> +++ b/drivers/spi/spi-s3c64xx.c
> @@ -10,6 +10,7 @@
>  #include <linux/clk.h>
>  #include <linux/dma-mapping.h>
>  #include <linux/dmaengine.h>
> +#include <linux/io.h>
>  #include <linux/platform_device.h>
>  #include <linux/pm_runtime.h>
>  #include <linux/spi/spi.h>
> --
> 2.43.0.429.g432eaa2c6b-goog
>





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